WordReference Random House Learner's Dictionary of American English © 2017
bu•lim•i•a /byuˈlɪmiə, -ˈlimiə, bu-/USA pronunciation   n. [uncountable]
  1. Psychiatrya disturbance in eating habits marked by repeated instances of overeating followed by intentional vomiting or fasting.

WordReference Random House Unabridged Dictionary of American English © 2017
bu•lim•i•a  (byo̅o̅ limē ə, -lēmē ə, bo̅o̅-, bə-),USA pronunciation n. 
  1. PathologyAlso called  hyperphagia. abnormally voracious appetite or unnaturally constant hunger.
Also called  binge-purge syndrome, bulimia ner•vosa  (nûr vōsə).USA pronunciation [Psychiatry.]a habitual disturbance in eating behavior mostly affecting young women of normal weight, characterized by frequent episodes of grossly excessive food intake followed by self-induced vomiting to avert weight gain. Cf. anorexia nervosa.Also,  boulimia. 
  • Greek boulīmía extreme hunger, equivalent. to bou- intensive prefix (derivative of bou-, stem of boûs ox) + līm(ós) hunger + -ia -ia
  • Neo-Latin
  • Middle English 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::

bulimia /bjuːˈlɪmɪə/ n
  1. pathologically insatiable hunger, esp when caused by a brain lesion
  2. Also called: bulimia nervosa a disorder characterized by compulsive overeating followed by vomiting: sometimes associated with anxiety about gaining weight
Etymology: 17th Century: from New Latin, from Greek boulimia, from bous ox + limos hunger

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